package PTA;
import java.util.Scanner;

public class PTA_7_56 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String S = scan.next();
        String[] str = S.split("\\.");
        System.out.println(str[0]);
        System.out.println(str[1]);

        if(str[1].matches("(com)|(cn)")) {
            System.out.println(S+"是正确的Email地址");
            return;

        }
        System.out.println(S+"不是正确的Email地址");
    }
}
